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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[net-next-2.6.git] / include / rdma / ib_user_verbs.h
CommitLineData
8a96b3f9
RD		 1/*
2 * Copyright (c) 2005 Topspin Communications. All rights reserved.
33b9b3ee 3 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
91ecd4ae 4 * Copyright (c) 2005 PathScale, Inc. All rights reserved.
8bdb0e86 5 * Copyright (c) 2006 Mellanox Technologies. All rights reserved.
8a96b3f9
RD		 6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer.
20 *
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 * SOFTWARE.
8a96b3f9
RD		 34 */
35
36#ifndef IB_USER_VERBS_H
37#define IB_USER_VERBS_H
38
39#include <linux/types.h>
40
41/*
42 * Increment this value if any changes that break userspace ABI
43 * compatibility are made.
44 */
ea88fd16 45#define IB_USER_VERBS_ABI_VERSION 6
8a96b3f9
RD		 46
47enum {
8a96b3f9
RD		 48 IB_USER_VERBS_CMD_GET_CONTEXT,
49 IB_USER_VERBS_CMD_QUERY_DEVICE,
50 IB_USER_VERBS_CMD_QUERY_PORT,
8a96b3f9
RD		 51 IB_USER_VERBS_CMD_ALLOC_PD,
52 IB_USER_VERBS_CMD_DEALLOC_PD,
53 IB_USER_VERBS_CMD_CREATE_AH,
54 IB_USER_VERBS_CMD_MODIFY_AH,
55 IB_USER_VERBS_CMD_QUERY_AH,
56 IB_USER_VERBS_CMD_DESTROY_AH,
57 IB_USER_VERBS_CMD_REG_MR,
58 IB_USER_VERBS_CMD_REG_SMR,
59 IB_USER_VERBS_CMD_REREG_MR,
60 IB_USER_VERBS_CMD_QUERY_MR,
61 IB_USER_VERBS_CMD_DEREG_MR,
62 IB_USER_VERBS_CMD_ALLOC_MW,
63 IB_USER_VERBS_CMD_BIND_MW,
64 IB_USER_VERBS_CMD_DEALLOC_MW,
6b73597e 65 IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL,
8a96b3f9
RD		 66 IB_USER_VERBS_CMD_CREATE_CQ,
67 IB_USER_VERBS_CMD_RESIZE_CQ,
68 IB_USER_VERBS_CMD_DESTROY_CQ,
69 IB_USER_VERBS_CMD_POLL_CQ,
70 IB_USER_VERBS_CMD_PEEK_CQ,
71 IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,
72 IB_USER_VERBS_CMD_CREATE_QP,
73 IB_USER_VERBS_CMD_QUERY_QP,
74 IB_USER_VERBS_CMD_MODIFY_QP,
75 IB_USER_VERBS_CMD_DESTROY_QP,
76 IB_USER_VERBS_CMD_POST_SEND,
77 IB_USER_VERBS_CMD_POST_RECV,
78 IB_USER_VERBS_CMD_ATTACH_MCAST,
f520ba5a
RD		 79 IB_USER_VERBS_CMD_DETACH_MCAST,
80 IB_USER_VERBS_CMD_CREATE_SRQ,
81 IB_USER_VERBS_CMD_MODIFY_SRQ,
82 IB_USER_VERBS_CMD_QUERY_SRQ,
83 IB_USER_VERBS_CMD_DESTROY_SRQ,
84 IB_USER_VERBS_CMD_POST_SRQ_RECV
8a96b3f9
RD		 85};
86
87/*
88 * Make sure that all structs defined in this file remain laid out so
89 * that they pack the same way on 32-bit and 64-bit architectures (to
90 * avoid incompatibility between 32-bit userspace and 64-bit kernels).
91ecd4ae
RD		 91 * Specifically:
92 * - Do not use pointer types -- pass pointers in __u64 instead.
93 * - Make sure that any structure larger than 4 bytes is padded to a
94 * multiple of 8 bytes. Otherwise the structure size will be
95 * different between 32-bit and 64-bit architectures.
8a96b3f9
RD		 96 */
97
98struct ib_uverbs_async_event_desc {
99 __u64 element;
100 __u32 event_type; /* enum ib_event_type */
101 __u32 reserved;
102};
103
104struct ib_uverbs_comp_event_desc {
105 __u64 cq_handle;
106};
107
108/*
109 * All commands from userspace should start with a __u32 command field
110 * followed by __u16 in_words and out_words fields (which give the
111 * length of the command block and response buffer if any in 32-bit
112 * words). The kernel driver will read these fields first and read
113 * the rest of the command struct based on these value.
114 */
115
116struct ib_uverbs_cmd_hdr {
117 __u32 command;
118 __u16 in_words;
119 __u16 out_words;
120};
121
8a96b3f9
RD		 122struct ib_uverbs_get_context {
123 __u64 response;
8a96b3f9
RD		 124 __u64 driver_data[0];
125};
126
127struct ib_uverbs_get_context_resp {
128 __u32 async_fd;
6b73597e 129 __u32 num_comp_vectors;
8a96b3f9
RD		 130};
131
132struct ib_uverbs_query_device {
133 __u64 response;
134 __u64 driver_data[0];
135};
136
137struct ib_uverbs_query_device_resp {
138 __u64 fw_ver;
97f52eb4
SH		 139 __be64 node_guid;
140 __be64 sys_image_guid;
8a96b3f9
RD		 141 __u64 max_mr_size;
142 __u64 page_size_cap;
143 __u32 vendor_id;
144 __u32 vendor_part_id;
145 __u32 hw_ver;
146 __u32 max_qp;
147 __u32 max_qp_wr;
148 __u32 device_cap_flags;
149 __u32 max_sge;
150 __u32 max_sge_rd;
151 __u32 max_cq;
152 __u32 max_cqe;
153 __u32 max_mr;
154 __u32 max_pd;
155 __u32 max_qp_rd_atom;
156 __u32 max_ee_rd_atom;
157 __u32 max_res_rd_atom;
158 __u32 max_qp_init_rd_atom;
159 __u32 max_ee_init_rd_atom;
160 __u32 atomic_cap;
161 __u32 max_ee;
162 __u32 max_rdd;
163 __u32 max_mw;
164 __u32 max_raw_ipv6_qp;
165 __u32 max_raw_ethy_qp;
166 __u32 max_mcast_grp;
167 __u32 max_mcast_qp_attach;
168 __u32 max_total_mcast_qp_attach;
169 __u32 max_ah;
170 __u32 max_fmr;
171 __u32 max_map_per_fmr;
172 __u32 max_srq;
173 __u32 max_srq_wr;
174 __u32 max_srq_sge;
175 __u16 max_pkeys;
176 __u8 local_ca_ack_delay;
177 __u8 phys_port_cnt;
178 __u8 reserved[4];
179};
180
181struct ib_uverbs_query_port {
182 __u64 response;
183 __u8 port_num;
184 __u8 reserved[7];
185 __u64 driver_data[0];
186};
187
188struct ib_uverbs_query_port_resp {
189 __u32 port_cap_flags;
190 __u32 max_msg_sz;
191 __u32 bad_pkey_cntr;
192 __u32 qkey_viol_cntr;
193 __u32 gid_tbl_len;
194 __u16 pkey_tbl_len;
195 __u16 lid;
196 __u16 sm_lid;
197 __u8 state;
198 __u8 max_mtu;
199 __u8 active_mtu;
200 __u8 lmc;
201 __u8 max_vl_num;
202 __u8 sm_sl;
203 __u8 subnet_timeout;
204 __u8 init_type_reply;
205 __u8 active_width;
206 __u8 active_speed;
207 __u8 phys_state;
208 __u8 reserved[3];
209};
210
8a96b3f9
RD		 211struct ib_uverbs_alloc_pd {
212 __u64 response;
213 __u64 driver_data[0];
214};
215
216struct ib_uverbs_alloc_pd_resp {
217 __u32 pd_handle;
218};
219
220struct ib_uverbs_dealloc_pd {
221 __u32 pd_handle;
222};
223
224struct ib_uverbs_reg_mr {
225 __u64 response;
226 __u64 start;
227 __u64 length;
228 __u64 hca_va;
229 __u32 pd_handle;
230 __u32 access_flags;
231 __u64 driver_data[0];
232};
233
234struct ib_uverbs_reg_mr_resp {
235 __u32 mr_handle;
236 __u32 lkey;
237 __u32 rkey;
238};
239
240struct ib_uverbs_dereg_mr {
241 __u32 mr_handle;
242};
243
6b73597e
RD		 244struct ib_uverbs_create_comp_channel {
245 __u64 response;
246};
247
248struct ib_uverbs_create_comp_channel_resp {
249 __u32 fd;
250};
251
8a96b3f9
RD		 252struct ib_uverbs_create_cq {
253 __u64 response;
254 __u64 user_handle;
255 __u32 cqe;
6b73597e
RD		 256 __u32 comp_vector;
257 __s32 comp_channel;
258 __u32 reserved;
8a96b3f9
RD		 259 __u64 driver_data[0];
260};
261
262struct ib_uverbs_create_cq_resp {
263 __u32 cq_handle;
264 __u32 cqe;
265};
266
33b9b3ee
RD		 267struct ib_uverbs_resize_cq {
268 __u64 response;
269 __u32 cq_handle;
270 __u32 cqe;
271 __u64 driver_data[0];
272};
273
274struct ib_uverbs_resize_cq_resp {
275 __u32 cqe;
64f817ba
RC		 276 __u32 reserved;
277 __u64 driver_data[0];
33b9b3ee
RD		 278};
279
91ecd4ae
RD		 280struct ib_uverbs_poll_cq {
281 __u64 response;
282 __u32 cq_handle;
283 __u32 ne;
284};
285
286struct ib_uverbs_wc {
287 __u64 wr_id;
288 __u32 status;
289 __u32 opcode;
290 __u32 vendor_err;
291 __u32 byte_len;
00f7ec36
SW		 292 union {
293 __u32 imm_data;
294 __u32 invalidate_rkey;
295 } ex;
91ecd4ae
RD		 296 __u32 qp_num;
297 __u32 src_qp;
298 __u32 wc_flags;
299 __u16 pkey_index;
300 __u16 slid;
301 __u8 sl;
302 __u8 dlid_path_bits;
303 __u8 port_num;
304 __u8 reserved;
305};
306
307struct ib_uverbs_poll_cq_resp {
308 __u32 count;
309 __u32 reserved;
310 struct ib_uverbs_wc wc[0];
311};
312
313struct ib_uverbs_req_notify_cq {
314 __u32 cq_handle;
315 __u32 solicited_only;
316};
317
8a96b3f9 318struct ib_uverbs_destroy_cq {
63aaf647 319 __u64 response;
8a96b3f9 320 __u32 cq_handle;
63aaf647
RD		 321 __u32 reserved;
322};
323
324struct ib_uverbs_destroy_cq_resp {
325 __u32 comp_events_reported;
326 __u32 async_events_reported;
8a96b3f9
RD		 327};
328
6a9af2e1
SH		 329struct ib_uverbs_global_route {
330 __u8 dgid[16];
331 __u32 flow_label;
332 __u8 sgid_index;
333 __u8 hop_limit;
334 __u8 traffic_class;
335 __u8 reserved;
336};
337
338struct ib_uverbs_ah_attr {
339 struct ib_uverbs_global_route grh;
340 __u16 dlid;
341 __u8 sl;
342 __u8 src_path_bits;
343 __u8 static_rate;
344 __u8 is_global;
345 __u8 port_num;
346 __u8 reserved;
347};
348
349struct ib_uverbs_qp_attr {
350 __u32 qp_attr_mask;
351 __u32 qp_state;
352 __u32 cur_qp_state;
353 __u32 path_mtu;
354 __u32 path_mig_state;
355 __u32 qkey;
356 __u32 rq_psn;
357 __u32 sq_psn;
358 __u32 dest_qp_num;
359 __u32 qp_access_flags;
360
361 struct ib_uverbs_ah_attr ah_attr;
362 struct ib_uverbs_ah_attr alt_ah_attr;
363
364 /* ib_qp_cap */
365 __u32 max_send_wr;
366 __u32 max_recv_wr;
367 __u32 max_send_sge;
368 __u32 max_recv_sge;
369 __u32 max_inline_data;
370
371 __u16 pkey_index;
372 __u16 alt_pkey_index;
373 __u8 en_sqd_async_notify;
374 __u8 sq_draining;
375 __u8 max_rd_atomic;
376 __u8 max_dest_rd_atomic;
377 __u8 min_rnr_timer;
378 __u8 port_num;
379 __u8 timeout;
380 __u8 retry_cnt;
381 __u8 rnr_retry;
382 __u8 alt_port_num;
383 __u8 alt_timeout;
384 __u8 reserved[5];
385};
386
8a96b3f9
RD		 387struct ib_uverbs_create_qp {
388 __u64 response;
389 __u64 user_handle;
390 __u32 pd_handle;
391 __u32 send_cq_handle;
392 __u32 recv_cq_handle;
393 __u32 srq_handle;
394 __u32 max_send_wr;
395 __u32 max_recv_wr;
396 __u32 max_send_sge;
397 __u32 max_recv_sge;
398 __u32 max_inline_data;
399 __u8 sq_sig_all;
400 __u8 qp_type;
401 __u8 is_srq;
402 __u8 reserved;
403 __u64 driver_data[0];
404};
405
406struct ib_uverbs_create_qp_resp {
407 __u32 qp_handle;
408 __u32 qpn;
77369ed3
JM		 409 __u32 max_send_wr;
410 __u32 max_recv_wr;
411 __u32 max_send_sge;
412 __u32 max_recv_sge;
413 __u32 max_inline_data;
4d9781c5 414 __u32 reserved;
8a96b3f9
RD		 415};
416
417/*
418 * This struct needs to remain a multiple of 8 bytes to keep the
419 * alignment of the modify QP parameters.
420 */
421struct ib_uverbs_qp_dest {
422 __u8 dgid[16];
423 __u32 flow_label;
424 __u16 dlid;
425 __u16 reserved;
426 __u8 sgid_index;
427 __u8 hop_limit;
428 __u8 traffic_class;
429 __u8 sl;
430 __u8 src_path_bits;
431 __u8 static_rate;
432 __u8 is_global;
433 __u8 port_num;
434};
435
7ccc9a24
DB		 436struct ib_uverbs_query_qp {
437 __u64 response;
438 __u32 qp_handle;
439 __u32 attr_mask;
440 __u64 driver_data[0];
441};
442
443struct ib_uverbs_query_qp_resp {
444 struct ib_uverbs_qp_dest dest;
445 struct ib_uverbs_qp_dest alt_dest;
446 __u32 max_send_wr;
447 __u32 max_recv_wr;
448 __u32 max_send_sge;
449 __u32 max_recv_sge;
450 __u32 max_inline_data;
451 __u32 qkey;
452 __u32 rq_psn;
453 __u32 sq_psn;
454 __u32 dest_qp_num;
455 __u32 qp_access_flags;
456 __u16 pkey_index;
457 __u16 alt_pkey_index;
458 __u8 qp_state;
459 __u8 cur_qp_state;
460 __u8 path_mtu;
461 __u8 path_mig_state;
0b26c88f 462 __u8 sq_draining;
7ccc9a24
DB		 463 __u8 max_rd_atomic;
464 __u8 max_dest_rd_atomic;
465 __u8 min_rnr_timer;
466 __u8 port_num;
467 __u8 timeout;
468 __u8 retry_cnt;
469 __u8 rnr_retry;
470 __u8 alt_port_num;
471 __u8 alt_timeout;
472 __u8 sq_sig_all;
473 __u8 reserved[5];
474 __u64 driver_data[0];
475};
476
8a96b3f9
RD		 477struct ib_uverbs_modify_qp {
478 struct ib_uverbs_qp_dest dest;
479 struct ib_uverbs_qp_dest alt_dest;
480 __u32 qp_handle;
481 __u32 attr_mask;
482 __u32 qkey;
483 __u32 rq_psn;
484 __u32 sq_psn;
485 __u32 dest_qp_num;
486 __u32 qp_access_flags;
487 __u16 pkey_index;
488 __u16 alt_pkey_index;
489 __u8 qp_state;
490 __u8 cur_qp_state;
491 __u8 path_mtu;
492 __u8 path_mig_state;
493 __u8 en_sqd_async_notify;
494 __u8 max_rd_atomic;
495 __u8 max_dest_rd_atomic;
496 __u8 min_rnr_timer;
497 __u8 port_num;
498 __u8 timeout;
499 __u8 retry_cnt;
500 __u8 rnr_retry;
501 __u8 alt_port_num;
502 __u8 alt_timeout;
503 __u8 reserved[2];
504 __u64 driver_data[0];
505};
506
507struct ib_uverbs_modify_qp_resp {
508};
509
510struct ib_uverbs_destroy_qp {
63aaf647 511 __u64 response;
8a96b3f9 512 __u32 qp_handle;
63aaf647
RD		 513 __u32 reserved;
514};
515
516struct ib_uverbs_destroy_qp_resp {
517 __u32 events_reported;
8a96b3f9
RD		 518};
519
91ecd4ae
RD		 520/*
521 * The ib_uverbs_sge structure isn't used anywhere, since we assume
522 * the ib_sge structure is packed the same way on 32-bit and 64-bit
523 * architectures in both kernel and user space. It's just here to
524 * document the ABI.
525 */
526struct ib_uverbs_sge {
527 __u64 addr;
528 __u32 length;
529 __u32 lkey;
530};
531
532struct ib_uverbs_send_wr {
a74cd4af 533 __u64 wr_id;
91ecd4ae
RD		 534 __u32 num_sge;
535 __u32 opcode;
536 __u32 send_flags;
0f39cf3d
RD		 537 union {
538 __u32 imm_data;
539 __u32 invalidate_rkey;
540 } ex;
91ecd4ae
RD		 541 union {
542 struct {
543 __u64 remote_addr;
544 __u32 rkey;
545 __u32 reserved;
546 } rdma;
547 struct {
548 __u64 remote_addr;
549 __u64 compare_add;
550 __u64 swap;
551 __u32 rkey;
552 __u32 reserved;
553 } atomic;
554 struct {
555 __u32 ah;
556 __u32 remote_qpn;
557 __u32 remote_qkey;
558 __u32 reserved;
559 } ud;
560 } wr;
561};
562
563struct ib_uverbs_post_send {
564 __u64 response;
565 __u32 qp_handle;
566 __u32 wr_count;
567 __u32 sge_count;
568 __u32 wqe_size;
569 struct ib_uverbs_send_wr send_wr[0];
570};
571
572struct ib_uverbs_post_send_resp {
573 __u32 bad_wr;
574};
575
576struct ib_uverbs_recv_wr {
577 __u64 wr_id;
578 __u32 num_sge;
579 __u32 reserved;
580};
581
582struct ib_uverbs_post_recv {
583 __u64 response;
584 __u32 qp_handle;
585 __u32 wr_count;
586 __u32 sge_count;
587 __u32 wqe_size;
588 struct ib_uverbs_recv_wr recv_wr[0];
589};
590
591struct ib_uverbs_post_recv_resp {
592 __u32 bad_wr;
593};
594
595struct ib_uverbs_post_srq_recv {
596 __u64 response;
597 __u32 srq_handle;
598 __u32 wr_count;
599 __u32 sge_count;
600 __u32 wqe_size;
601 struct ib_uverbs_recv_wr recv[0];
602};
603
604struct ib_uverbs_post_srq_recv_resp {
605 __u32 bad_wr;
606};
607
91ecd4ae
RD		 608struct ib_uverbs_create_ah {
609 __u64 response;
610 __u64 user_handle;
611 __u32 pd_handle;
612 __u32 reserved;
613 struct ib_uverbs_ah_attr attr;
614};
615
616struct ib_uverbs_create_ah_resp {
617 __u32 ah_handle;
618};
619
620struct ib_uverbs_destroy_ah {
621 __u32 ah_handle;
622};
623
8a96b3f9
RD		 624struct ib_uverbs_attach_mcast {
625 __u8 gid[16];
626 __u32 qp_handle;
627 __u16 mlid;
628 __u16 reserved;
629 __u64 driver_data[0];
630};
631
632struct ib_uverbs_detach_mcast {
633 __u8 gid[16];
634 __u32 qp_handle;
635 __u16 mlid;
636 __u16 reserved;
637 __u64 driver_data[0];
638};
639
f520ba5a
RD		 640struct ib_uverbs_create_srq {
641 __u64 response;
642 __u64 user_handle;
643 __u32 pd_handle;
644 __u32 max_wr;
645 __u32 max_sge;
646 __u32 srq_limit;
647 __u64 driver_data[0];
648};
649
650struct ib_uverbs_create_srq_resp {
651 __u32 srq_handle;
ea88fd16
DB		 652 __u32 max_wr;
653 __u32 max_sge;
654 __u32 reserved;
f520ba5a
RD		 655};
656
657struct ib_uverbs_modify_srq {
658 __u32 srq_handle;
659 __u32 attr_mask;
660 __u32 max_wr;
f520ba5a 661 __u32 srq_limit;
f520ba5a
RD		 662 __u64 driver_data[0];
663};
664
8bdb0e86
DB		 665struct ib_uverbs_query_srq {
666 __u64 response;
667 __u32 srq_handle;
668 __u32 reserved;
669 __u64 driver_data[0];
670};
671
672struct ib_uverbs_query_srq_resp {
673 __u32 max_wr;
674 __u32 max_sge;
675 __u32 srq_limit;
676 __u32 reserved;
677};
678
f520ba5a 679struct ib_uverbs_destroy_srq {
63aaf647 680 __u64 response;
f520ba5a 681 __u32 srq_handle;
63aaf647
RD		 682 __u32 reserved;
683};
684
685struct ib_uverbs_destroy_srq_resp {
686 __u32 events_reported;
f520ba5a
RD		 687};
688
8a96b3f9 689#endif /* IB_USER_VERBS_H */
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